docs: def expand_node_neighborhood(universe, graph, node: BaseEntity) -> None:
      """Expand around the neighborhoods of the given node in the result graph.
  
      :param pybel.BELGraph universe: The graph containing the stuff to add
      :param pybel.BELGraph graph: The graph to add stuff to
      :param node: A BEL node
      """
      expand_node_predecessors(universe, graph, node)
      expand_node_successors(universe, graph, node)